1904
The HST was launched on April 24, 1990.
He Built the first relfecting telescope in 1672!!
Johannes Kepler did not invent the telescope. The Invention of the telescope is credited to three people Hans Lippershey, and Jacob Metius. The first records appear in 1608, more than 60 years before Kepler was born. The Kepler telescope was built by Ball Aerospace & Technologies and launched by NASA in 2009. This telescope was not invented by Johannes Kepler but was merely named in his honor.
The Hubble telescope was launched in 1990, but faulty optics limited its use until a shuttle mission made repairs in 1993. Other servicing missions improved its onboard instruments. It will be mostly superseded by the James Webb Space Telescope planned for launch around 2018.
Galileo Galilei first used the "new" telescope in 1609
The USSR launched Sputnik I, the first successful artificial satellite, on October 4, 1957.
The Hubble Telescope was launched into space in 1990. Nelson Mandela was also freed from prison in the year 1990.
Galileo was the first to use a telescope for major discoveries, around the year 1610.
The first atomic submarine known as the Nautilus was launched January 21st 1954
Sarva Shiksha Abhiyan is launched in the year 2001.
1969
Not before 1608